STRUCTURATION OF GRAPHICAL SCALES IN THE SENSORY DIFFERENCE TESTING AFFECTS THE DISTRIBUTION OF RESULTS

Differences between the reference and the test samples were determined by the sensory analysis using two graphical scales: (1) unstructured one-way or two-way scales provided with verbal descriptions of the end points; (2) structured scales provided with 5 or 7 anchoring points w ith verbal descriptions. The anchoring points attracted the rating sig ns in the case of trained, and still more of untrained persons. Differ ences between the scales were found statistically significant by KOLMO GOROV-SMIRNOV One-Sample or Two-Sample tests.